After decomposing the sample by dry method, dissolve the residue with sulfuric acid and ammonium sulfate, and test it.

试样以干法分解，以硫酸，硫酸铵溶解残渣后进行测试。

youdao

After decomposing the sample by dry method, dissolve the residue with sulfuric acid and ammonium sulfate, and test it.

试样以干法分解，以硫酸，硫酸铵溶解残渣后进行测试。

youdao